Housing for the conning-towers, periscopes, and ventilating-shafts of submarines.



M. F. HAY,

HOUSlNG EUR CONNING TOWERS, PEBISGOPES, AND VBNTILTING SHAFTS 0F SUBMARINES.

APPLICATION FILED EILZO, 1914.

Patented June 2, i914.

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M. F. HAY. HOUSING FR THE CONNING TUWERS,PEBSGOPES,AND VENTILATING SHAFTS OF SUBMARINE APPLICATION FILED TERZO, 1914.

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.Patented June 25 9%.

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@En wsierras Parente maaar rornsamenm nar, or Aanisnew, `scortannf`f "l Be it known ty at.- I, MARLEY Fo'rmaiuuei-` HAM Hug a subject of the King of Great Britain and Ireland, anda resident of Glasgow, Scotland, have invented certain new and useful Improvements in- Housings for ,Y I the Cunning-Towers,v Periscopes, and Ventivlisting-Shafts of Submarines, of which the following-isv the specification, i e

This invention has for its object to provide improved' housings for the conning tower ifs and-the peri'sco s of submarines, and if de sired also for t e Ventilating shafts of such vessels, so astomaterially reduce the resistanceA produced by? these projecting parts when the vessel isrunning submerged. Thus Y in view of this decreased resistance the speed of the vesselsulimerged for any given power is increased, andthe radius .of action submerged for any given speed isconsiderably f enhanced.

It has always been a eneral practice in submarines to lita conning tower for purof observation'and navigation when likewise-.been a general practice to lit a hous-4 purposes of observation has running on the surface in rough weather. This conning tower is usually circular in section, or some other form which is productive of a large amount of resistance to propulsion Y when the vessel is submerged. With a view to somewhat decreasing this resistance it has ing forming a wave breaker or fairwater' around this conning tower giving 1t a more or less 'ship shape form. wThis fairwater, however, has been made lower than the conning tower itself, and the top of the conning tower which is provided with port holes for the top of the fairwater. his projecting top. is in itself, however, productive of a very large amount of resistance. To overcome or materially decrease this resistance according to-the first part of the invention there is provided an improved form of wave breaker'in which the after portion is carried up,l to aheight correspondingwith the height of the conning tower. By this means the revsistance of the projecting portion of thereon-A ning tower is reduced to aminimum: This vafter portion of the housing is covered over and'forms a usual navigatin platform when runnngon the y"surface in air weather. Y

' The usual two' riscopes pass u through the housing, an "acoordin part -of' the' invention a considerable portion r1projected above 'A totesecond4 Pantjeufimr.

of the parts of these-periscopesrwhich extend above the housing areinclosed in asingle additional housing tapered toaverticaled e at. both ends and extending up; from the nav1gatrng platform ask highy as maybe convenient or possible. Dead water isthus prevented from forming. behind the' rounded after side of each periscope, and consequently `the resistance these parts formerly v produced is materially reduced.

T he space in both housings between the perlscopes can be utilized as a convenient lead ,for the Ventilating shafts, and

tem of valves, forming the subject-matter of a concurrent application for a. patent, so that they Ado not require to be pulled down preparatory to diving, they are also so inclosed by the housings that the resistance they would otherwise offer is'obviated. Co'nsequently as the Ventilating shafts do not require to be pulled down preparato ing, the time required to pre are lthe vessel for diving'isthereby materialiy reduced.

The improved housings are shown on two accompanying sheets of explanatory draw ings, Figure l being an end elevation, Fig. 2 a side elevation, and Fig. 3 a plan thereof. As shown-iin the drawings, the conning tower A is surrounded by va housing B forming a wave breaker or fairwater. This housing` is` on its forward side carried up from the vessels superstructure C as formerly, only to a level which is below the level of the sidelights on the side of the conning tower, to allow a direct line of'vision being obtained aheadthroughthe sid'elghts; but according to the invention the after portion venin-.amazement '0F here -such `shafts are fitted with the improve systo' divof the housing B is made to extend up to the ing'Bthe top of which is covered over-and "forms a navigating platform, and an additional single housing G, taperedto a vertical edge at both ends and extending up from the navigating platform as high as may be possible or convenient,.so incloses a considerable portion of the upwardly extending parts of 'these'periscopes that the resistance formerlyloie'red ,by 11119111 Whe!! th? $9158 under way submerged is reduced to ,n inini-f mum. yFurther, two Ventilating shafts H,A

J, each fitted with Jthe improved system of 'valves hereinbefore referred to, so that they do not require to he pulled down previous to diving', are so led that they extend up through both housings B, Gr and, as they are therefore similarly sheathed or inoiosed by the housings so that dea-d water is also preif'ented from forming behind their rounded after sides, they oder little. or no resistance kto the propulsion `of the vessel "submerged, :and consequently there is no objection to their being left in position and not drawn down preparatory to diving.'

l The usual apertures vare also provided in `looth housings to permit of. the entry and exit of Water und air to their interiors when diving` so that these'struetilres do not require to be made pressure resisting.

That I claim is I A housing for the conning tower of usual height. forwardlo-ut extending aft the full height of the tower and tapering aft to a line edge; on this housing a second housing 25 tapered to vertioaledges at both ends, and inclosingf upwardly extending'V portions of perisoopes and Ventilating shafts. f

In testimony whereof I have signed my naine to this specification, in the presence of 30 two subscribing' witnesses.

MARLEY FOTHERINGHAM HAY.

Witnesses DAVID FERGUSON, JAMES EAGLEsoM. 

